"Work smarter, not harder" has been a cliché for so long that the practical version has been buried under inspirational posters. The twenty-one tips below are the practical version — small, testable, mostly independent. Pick five, try them for two weeks, keep the three that stick.

Own the calendar

1. Block two-hour focus windows. Not ninety minutes, not three hours. Two is the interval most brains can sustain without meaningful drop-off.
2. Put recurring admin on one day. Friday afternoon is ideal for expenses, inbox zero, planning — the week's leftover fatigue matches the work's low cognitive demand.
3. Cap meetings at 25 or 50 minutes so transitions get room to breathe. Back-to-back hours are secretly back-to-back fifty-nines.

Reduce context switches

4. One project per half-day. Bouncing between three projects costs fifteen to twenty minutes per switch.
5. Close extra tabs. Each one is a small attention claim, even unread.
6. Close Slack and email between focus windows only. Notification batching beats notification avoidance — the brain tolerates scheduled interruptions better than unpredictable silence.

Trim the task list

7. Daily list: no more than five items. Any longer and you're decorating, not planning.
8. Tag tasks with rough minute counts. An estimate of 90 minutes at 9 AM is radically more honest than "morning."
9. Delete what's been on the list three weeks. It either becomes urgent or stays irrelevant.

Use better defaults

10. Default to "no" on new commitments. Make "yes" the exception that requires evaluation.
11. Default to 15-minute calls. A 30-minute slot rarely uses the last half.
12. Default to async. Most meetings are better as documents; most documents are better as bulleted updates.

Protect energy, not just time

13. Hardest work first, email later. Morning willpower is a non-renewable resource.
14. Eat lunch away from the screen — the second half of the day is measurably sharper when lunch is a break rather than a pause.
15. Walk for ten minutes between heavy work blocks. Cheapest focus-reset there is.

Build systems, not willpower

16. Template the first five minutes of common tasks. A standing weekly report with placeholders saves the restart cost every week.
17. Use keyboard shortcuts religiously. Ten shortcuts save an hour a week.
18. Automate the obvious. Zapier, a scheduled script, a calendar-based prompt — anything that shifts a recurring task from manual to automatic.

Close the day properly

19. End-of-day review: three sentences. What worked, what stalled, what's first tomorrow.
20. Empty the brain to paper before sleep. Open loops disrupt sleep; closed loops don't.
21. Have a stopping ritual. Laptop closed, one sentence written tomorrow's file, lights off. The ritual signals "done" the way a commute used to.

None of this is new. The compounding is what's new — over a month, the five tips that stick will visibly change output without requiring any additional hours.